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octa-(word root) eight
Examples of words with the root octa-: octagon
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree
Variants of octo-.
octo-or octa- or oct-
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a variant of octo-
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a combining form meaning “eight”: octagon; octahedron.Also, octo-;esp. before a vowel, oct-.
[< Greek, comb. form of oktṓ eight]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.